In a car accident, Feng Chenyi, the "living king of hell" in the business world, lost his beloved Su Wan, and his heart became a countdown to stopping at any time. Three years later, Xiao Xianxian, whose family was in decline, signed a contract to save his father and became a person around him who "resembled Su Wan very much".
The cinnabar mole under the collarbone was the most striking difference between her and Su Wan, but it failed to stop Feng Chenyi's increasingly out-of-control heartbeat. He had a hard mouth but a soft heart, and used indifference to cover up his affection. In front of her, the decisive CEO would clumsily learn to cook nutritious meals, and even when he frowned in pain due to a leg injury on a rainy day, he still managed to say "it's okay".
She thought she was a substitute, but late at night when he had a cardiac arrest, she saw the secret hidden in his diary - "Her mole can be hot, like a little sun, but Su Wan can't."
When the truth about the car accident three years ago came to light, when Su Wan's brother Su Chen showed up with the "Heart Source" bargaining chip, and when Lin Hao's conspiracy followed closely, the entanglement that began with a contract had already become a life-and-death bond.
"Fengchenyi, do you love me or her shadow?"
He squeezed her hand tightly and placed his palm against her mole. His voice was hoarse but firm: "I lost the light before. Now, I want to protect my sun."
Surrounded by suspicions about substitutes, life-and-death struggles, and family feuds, they are pulled between lies and truth, embracing each other in desperate situations. It turns out that the deepest love is never about recreating the past, but about changing your life for you even if you only have your last breath.